32280989440 has 432 divisors, whose sum is σ = 95866412544. Its totient is φ = 10182205440.

The previous prime is 32280989423. The next prime is 32280989441. The reversal of 32280989440 is 4498908223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32280989441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198042799 + ... + 198042961.

It is an arithmetic number, because the mean of its divisors is an integer number (221912992).

Almost surely, 2^32280989440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32280989440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47933206272).

32280989440 is an abundant number, since it is smaller than the sum of its proper divisors (63585423104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32280989440 is a wasteful number, since it uses less digits than its factorization.

32280989440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 32280989440 in words is "thirty-two billion, two hundred eighty million, nine hundred eighty-nine thousand, four hundred forty".